Answer:
B) Protons and Neutrons
Explanation:
In every atom, there is a Nucleus which contains protons and Neutrons. Protons being positive and Neutrons not having a charge (neutral).
Answer is D. The periodic table rows are arranged by increasing atomic number. The atomic number is decided by how many protons they have.
Answer:
C
Explanation:
You climbing the water slide gives you potential energy and your building gravitational eneergy.
Answer: m/s^2 (metre per second square)
Explanation:
Acceleration is the rate of change in velocity per unit time. The standard unit of measurement for acceleration is m/s^2 (metre per second square).
It can be derived from:
Acceleration = velocity / Time
Acceleration = (metre per second / second)
Acceleration = metre per second square.
In short form, it is written as m/s^2
Carbon tetra chloride = CCl4
calcium bromide = CaBr2